#include <stdio.h>
#include <math.h>

#define PI 3.1415926

int main() 
{

	double y1 = 0.0;
	double y2 = 0.0;
	double y3 = 0.0;
	y1 = (2 * sqrt(5.0) * (sqrt(6.0) + sqrt(3.0))) / (6 + 3);
	y2 = (log(5 * log(3.0)) - log(2.0)) / sin(PI / 3);
	y3 = exp(3.0) + log10(105.0);
	printf("%lf\n%lf\n%lf", y1, y2, y3);

	return 0;
}
